Relay.



PATENTED AUG. 6, 1907..

R. MUBBRTY.

RELAY. urmunmn rn nn JULY 16. 1906.

UNITED su ng 13%?ENII. OFFICE,

FRANK R.'MOBERTY, OF NEW ROCHELLE, NEW YORK, ASSIGNOR TO WESTERNELECTRIC- COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

rennet".

Application filed July 18,

from being unseated'.

I will describe nly inventionby reference to the 'acc'ompanying drawing,wherein Figure 1 is an enlarged side-elevation of a relay .eq 'iipped inaccordance with my invention with a combined guide and back-stop; Fig. 2is" an enlarged detail cross-section through the armature and polepiece, with the stop and guide in elevation; and Fig. 3

" oithe pole piece, extending from. the point of support I 3010i saidarmature alongside the armature a Specification of Letters Patent.

1908. iisrial No- 328,329.

citizen of I Patented '3mg. 6, 1907,

The screw 0 is provided with is contracted or urithreruied endportion 1) which passes through a h ole 'erve as a 'guide therefor, saidend ain the armature to h wlder b thereon, which serves as a portionhaving a she I backstop for-the armature.

, 3-5 With. my. construction," "is above described, a= very simple andinexpensiveniean's is provided for guarding againstv unseating-of thearmature and at the same time acting as s backstop th erei or. The screwmay be ad 1 justed to vary the length of attractive movement of the 40armature, as desired. j I c z' an z I h 1. the combination with, a.magnet, of 'an. armature therefor, an adjustably-mou'nted screw havingan ,un-

threaded end portion passing through saidnrrnature to prevent the samefrom being unseated, and a shoulder on said end portion acting as astop-tor-said 'a'rmnture.

2. The cornbiniit'ion' with a magnet, of an 'armaturc therefor, apolejpiece for said'magne't upon which the arrnntnre is mounted ingnife-edge bearings, an angular extension bi said pole piece from thepoint of support of said armature, a screw passing through'snidextension swing asiinthreaded end portion'passing through armature Wprevent th same from; heing-nnseuted,' s u a shoulder on said endportion noting as,a bzickstop for said armature. r Y

In witness whereof, I, hereunto subscribe my full name this 10t day ofJuly, A. D. 1906.

FRANK R. Mammary.

Witnesses:

E. F. BEAUBIEN, Cnsnnncn A. Coe'em.

